I have GrapheneOS installed with Play Services which I already gave the battery exception. Yet, it seems that I am only receiving notifications when I wake up the phone.
First example, I wanted to make a payment in the browser and needed to confirm through the Banking App. The notification for confirmation only appeared when I tapped the screen to wake the phone.
The second example is with Messenger, someone sent me a message, and the notification (with sound) only appeared after I taped the screen to check something else.
Is there any further configuration that I need to change/update please?